Valve-spring-lifting device



App 1'0, 1923. 1,451,212 J. G. FYE 1 VALVE SPRING LIFTING DEVICE Filed Apr. 19, 19'21 Fatented Apr. 10, 1923.

JOH GILBERT rvnyor onmn, IOWA.

vALvE-srarrio-mr'rme Device.

Application area April ie, 1321. seria ivo. 462,533, I

To all whom it may concern;

Be it known that L'JOHN Gunner BYE, a citizen of the United Etates, and resldent of Ollie, in the county ot' K'eokul; and State of Iowa, have invented a certaln new and useiul Valve-Spring-Lifting Device, of which the following is a specification.

The object of my invention is to prov de a simple, durable, and n xpensive device tor lifting the valve springs of valve stems such be adaprefd'to be placedin positiai on valve i to. reach. My still further objectis to prov de in a valve lifting device haying PlVOiZGCl lifting arm improved means-tor actuating springs that are .'in di iicultpositions the arms so that the said arra may be elevated any desired amount to adapt the de-.

vice to be used in connection with engines of different types and when so lifted they will be automatically retained lntheir liIted po- I sition at the will of the operator.

My invention consists in the construction,

arrangemeiit and combination of the various parts of the device, whereby the ob ects con-. te'rnplated are attained, as hereinaiter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which: I f

Figure 1, is aside elevation of my 1mproved valve spring and lifting device show ing the manner in whichit is applledto a valve spring. Said valvespring being shown in position on the valve stem mounted 111 a segmental portion of an engine block.

Figure 2, is theplan vlew or my mproved valve spring lifting device. I

Figure 3, is a sectional view takenon the line 3'3 of Figure l. v

My improved device comprises a tubular arm, 10, having a bifurcated portion 11 at one end and two plates 12, riveted to the opposite sides and substantially parallel to each other. Pivotally mounted betweenthe plates 12 is a second tubular arm 13 of substantially the same length as arm 10, and provided'with a bifurcated portion 14 at its free end. Both of the arms 10 and 13 are curved near their free ends for the purpose of forming the clevice so thatit will more readily be adapted to be placed in the proper position for lifting the valve spring. Each of the bifurcated portions 11 and 14 is provided with a piv-. oted and forked plate 15. The space between the fork members of said plate is somewhat wid'erthan the diameter of the ordinary valve stem and in length substantially equal to or. greater than the diameter of the spring, to engage washers16,whioh are usually of substantially the same diameter the spring. One-of these springs is indicated by the'numeral 17 in Figure 1 of the drawings. The upper end of the spring chamber 18 which is provided with a valve not shown in the drawings, said valve having ado w'nward extending stem, 19, which extends downwardly through said spring} the lower end of which rests on said-washer. The lowerend of said stem 19, restson the end '01 a push rod 20. The washer 16 is designed to rest normally on the pin 21, which has to be removed before the valve on the 170* usually rests against the overhanging valve stem '19 can be removed-as the said valve is v removed by pulling the stem upwardly through the valve chamber and it is there- 'i orenecossary to elevate'the said washer a slight distance so that the said pin 21 may be easily removed. plac ng one ofthe fork members, 15, on the t5 Thisjis accomplished by.

upper portion of the boss22 in which the push rod 20 operatesand the-other beneath the washer 16 with the fork members straddling the rods 19 and-20respectively. The

lower endof the springl'? together with the washer 16 may be elevated by-separating the members15. This I have accomplished by separating thearms 10 and 13. To separate the said arms 1 have prov ded a lever device,

23, having "formed on one end a; triangular plate 24. li io'unted'inone end ot the said plate 24, I have provided rivets 25, which are of a lengthslightly greater than the diameter of the members 'lO and 13, and are dee signed to carry a similar plate 26 which is arranged parallel to the said plate 24.

In the apex end of the plates 24 and 26 1 have provided a series of openings 27. The openingsof one plate isin line with thoseof theopposi-te plate. A corresponding set of these openings is designed to receive a detachable rivet 28. Thesaid openings 27. are substantially in line with each other and said line extends substantially between the'rivets 25 sothat the said rivets are arranged in triangular form, the distance between the rivets 25 is considerably less than the distance between the rivets 25 and the rivet 28. In fact the distance between the outsides of the rivets 25 should be substantially equal to the distance between the members and 13. when said members are in a closedposition.

The tool 23 is applied" to the members 10 and 13 in such a manner that the rivets of the said tool will rest transversely between the members 10 and 13, with the said mem: bers between the plates 24, with the rivets in a plane substantially perpendicular to the said members 10 and 13. y

When it is desired to separate the members 15, a swinging movement is imparted to the handle 23. which will cause the rivets 25 to rest in a plane parallel with the member 10 and the rivet'2-8 adjacent to the member 13. This will cause the said members 10 and 13 to be separated due to the fact that the distance between rivets 25 and the rivet 28 is greater than the distance between said rivets 25.

It is evident that when the device assumes the position shown in Figure 1 that the said arms will be held separated on account of the triangular arrangement of the rivets. By moving the rivet 28 from one set of openings 27 to another the amount of lift between the members 15 may be varied. A further variation may also be impartedby moving the tool 23 either toward or from the pivoted ends of the member 13. By pivoting the plates 15 the tool is more readily adapted to engage certain valve springs for instance the end valve springs usually rest on a corneradjacent to the gear casing or other similar obstructions. F or holding the members 10 and 13 toward each other I.

have provided a coil spring 18. This also serves to hold the handle device 23 in posi- 'tion between said arms to prevent said handle from falling out.

Thus it will be seen that I have provided I a valve spring lifting device which may be easily and quickly placed'in position and when placed in positionit may be easily operated, and when moved to its operated position it will automatically retain that position until the handle 23 is moved in the opposite direction.

One advantage of the separate handle member 23 lies in the fact that the said member may be applied to the tool at any position along the straightened portions of the members 10 and 13 and the device operated. This is quite an advantage over a fixed pivoted member for operating the lifting arms, due to the fact that it often happens that certain obstructions are so positioned that a fixed operating mechanism would be in such position as to engagethe said obstruction. By adjusting the rivet 28 the handle'23 may be adapted to be operated either nearthe pivoted ends of the lifting members or the lifting ends of said members.

I claim as my invention: 1. An improvedv valve spring lifting device comprising two arms pivoted together near one end, and a spreader for said arms ber beingcapable of movement toward and i from the fixed member.

'2. An improved valvespring lifting device comprising two arms pivoted together,

a forked and pivoted member at the free end of each of said arms, a detachable spreading tool designed to be inserted from the side betweensaid arms and to separate the same by rotary movement, and to hold the arms in a separated position, said separatingtool comprising two parallel [plates spaced apart a distance slightly greater than the diameter of said pivoted arms, whereby the arms may be slidingly received between the plates, a handle secured to one of said,

plates, two fixed rivets extended through "said plates for holding them in their relat ve positions, and a detachablerivet, said rivets being arranged in a triangular form with the distance between the detachable rivets and the fixed rivets greater thanthe distance between said fixed rivets, for t-he purposes stated.

3. An improved valve spring lifting device comprising two arms, two parallel plates mounted on opposite sides of said arms at one end, means for fixing one of said arms in position between said plates, means for pivoting the other of said. arms in position between the sa d plates, and a spreader device for said arms com arising two plates slidingly mounted on opposite. sides of said arms, a handle secured .to one of said plates, and a triangularly shaped device, between the plates of the spreader device designed to engage adjacent surfaceof said arms, said triangular device being relatively short at one side and relatively longatthe other two sides, forthe purposes stated.

Des Moines, Iowa, April 7th, 1921.

JOHN GILBERT FYE. 

